摘要
布里渊光时域反射测量技术(BOTDR)测量数据看作由不同频率成分组成的数字信号序列,采用小波分析对其进行处理。利用小波变换对BOTDR的测量数据进行消噪处理和异常值检测,并用某工程现场实测的BOTDR数据进行了验证。实例表明,小波分析在消除噪声和检测异常点是十分有效的。
The measured signal obtained by Brillouin optical time domain reflectometer (BOTDR) is a time series made up of different frequency, and is processed by wavelet analysis. Denoising and singular point detecting of the measured signal is performed by wavelet transform. Test results indicate that this method is effective for detecting the singular points on a body surface.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2003年第7期737-740,共4页
Journal of Optoelectronics·Laser
基金
国家杰出青年科学基金资助项目(40225006)
国家教育部科学技术研究重点资助项目(01086)
